Add docker example

Author: stfnkth

README.md

@@ -28,3 +28,16 @@ shiny run basic_app/app.py
 ## Templates
 
 * [posit-dev/py-shiny-templates](https://github.com/posit-dev/py-shiny-templates)
+
+## Deployment
+
+To run Shiny apps in production you should use `gunicorn` or `uvicorn`:
+
+```bash
+uv add gunicorn
+
+shiny create -d basic_app_core -t basic-app -m core
+
+gunicorn basic_app_core.app:app -w 4 -k uvicorn.workers.UvicornWorker
+```
+

basic_app_core/Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3.11
+
+RUN pip install -U pip shiny gunicorn
+
+COPY app.py /opt/shiny/app.py
+
+EXPOSE 3333
+
+CMD ["gunicorn", "opt.shiny.app:app", "-w 4", "-k uvicorn.workers.UvicornWorker", "-b 0.0.0.0:3333"]
+

basic_app_core/README.md

@@ -0,0 +1,8 @@
+# Basic App Core
+
+```bash
+docker build -t shiny-for-py/basic-app-core:1.0.0 .
+
+docker run -p 3333:3333 --rm -d shiny-for-py/basic-app-core:1.0.0
+```
+

basic_app_core/app.py

@@ -0,0 +1,16 @@
+from shiny import App, render, ui
+
+app_ui = ui.page_fluid(
+    ui.panel_title("Hello Shiny!"),
+    ui.input_slider("n", "N", 0, 100, 20),
+    ui.output_text_verbatim("txt"),
+)
+
+
+def server(input, output, session):
+    @render.text
+    def txt():
+        return f"n*2 is {input.n() * 2}"
+
+
+app = App(app_ui, server)

pyproject.toml

@@ -5,5 +5,6 @@ description = "Add your description here"
 readme = "README.md"
 requires-python = ">=3.9"
 dependencies = [
+    "gunicorn>=23.0.0",
     "shiny>=1.2.1",
 ]